CN215933248U

CN215933248U - High-temperature photovoltaic cable

Info

Publication number: CN215933248U
Application number: CN202121728091.2U
Authority: CN
Inventors: 苟勇; 周凌云; 李晓红
Original assignee: Chengdu Chuanlan Cable Co ltd
Current assignee: Chengdu Chuanlan Cable Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-03-01
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a high-temperature photovoltaic cable, belongs to the technical field of cable equipment, and solves the problems that in the prior art, the cable cannot meet the daily high-temperature working condition requirement due to the winding layer performance of a cable conductor core, the bending resistance of the cable is insufficient, and an elastic component in the prior art is easy to damage the cable, which comprises an oxygen-free copper conductor, wherein a polytetrafluoroethylene semi-oriented film is wrapped outside the oxygen-free copper conductor, the outer part of the polytetrafluoroethylene semi-oriented film is wrapped with an inner shielding layer, the outer part of the inner shielding layer is wrapped with an insulating layer, an outer shielding layer is wound outside the insulating layer, a plurality of elastic components are fixedly arranged outside the outer shielding layer, the outside of elastic component is fixed and is provided with the wave guide, the outside of wave guide has the protective layer around the package, has realized the high temperature resistant of cable, the anti technological effect of buckling.

Description

High-temperature photovoltaic cable

Technical Field

The utility model belongs to the technical field of cable equipment, and particularly relates to a high-temperature photovoltaic cable.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors, at least two in each group, each group being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. Many cables are installed in the air or underground or underwater for telecommunication or power transmission, and the cables are classified into power cables, communication cables, control cables, etc. according to their uses. Compared with an overhead line, the cable has the advantages of small insulating distance between lines, small occupied space, no occupation of space above the ground due to underground laying, no influence of pollution of the surrounding environment, high power transmission reliability, and small interference on personal safety and the surrounding environment. But the cost is high, the construction and the maintenance are troublesome, and the manufacture is complicated. Therefore, the cable is mostly applied to dense areas of population and power grids and places with heavy traffic; when the cable is laid in the river, the river and the seabed, the use of large-span overhead lines can be avoided. Cables may also be used where it is desirable to avoid interference of overhead lines with communications and where aesthetic considerations or exposure to objects are desired.

In the conventional art, because the cable conductor core can not satisfy daily high temperature operating condition demand around the covering performance, the insulating ageing with higher speed often appears, influences cable life, forms inside hollow, takes place to damage accidents such as cable, and the anti bending ability of cable is not enough, and elastic component among the prior art forms the damage to the cable easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-temperature photovoltaic cable, aiming at the problems that in the prior art, because the performance of a cable conductor core wrapping layer can not meet the requirement of daily high-temperature working conditions, insulation accelerated aging often occurs, the service life of the cable is influenced, an internal hollow is formed, and accidents such as cable damage and the like occur, the utility model provides a high-temperature photovoltaic cable, which aims to solve the following problems that: the high temperature resistance and the bending resistance of the cable are improved.

The technical scheme adopted by the utility model is as follows:

the utility model provides a high temperature photovoltaic cable, includes the anaerobic copper conductor, the outside of anaerobic copper conductor is wrapped there is polytetrafluoroethylene semi-directional film, the outside parcel of polytetrafluoroethylene semi-directional film has the internal shield layer, the outside parcel of internal shield layer has the insulating layer, the outside of insulating layer is wrapped there is the external shield layer, the external fixation of external shield layer is provided with several elastic component, elastic component's external fixation is provided with the wave guide, the outside of wave guide is wrapped there is the protective layer.

Adopt above-mentioned scheme, at the outside of anaerobic copper conductor the polytetrafluoroethylene semi-directional film of package around, can effectively improve the holistic high temperature resistance of cable, and fall the radiation influence that the conductor produced to minimum, avoid the influence each other between each conductor, improve power supply efficiency, the elastic component who sets up outside the conductor can produce the effort opposite with the power of buckling for the cable when buckling at the cable, be used for resisting buckling, the anti bending performance of cable has been strengthened, adaptation that the waveguide tube that sets up in the outside of elastic component can be better is buckled, the life of cable has been improved.

And polypropylene mesh belt filling is arranged in the gap of the elastic component.

Adopt above-mentioned scheme, can fill through the polypropylene guipure, prevent that each conductor from misplacing each other, lead to the cable outside to warp, appear the cracked phenomenon of cable surrounding layer in long-time use, adopt the device, guaranteed the overall structure intensity of cable.

The elastic component comprises a reset block, one end of the reset block is fixedly connected with a buffer layer, the other end of the reset block is fixedly connected with a spring rod, the spring rod is sleeved with a sleeve, and the sleeve is far away from one end of the reset block, which is fixedly provided with a center pivot column.

Adopt above-mentioned scheme, when the cable appeared buckling, because one section of reset block is connected with the spring beam, the spring on the spring beam can play the supporting role to the buffer layer through the reset block, and its effort can make adaptability along with intensity of buckling and change, and when the spring compression, inside the spring beam income sleeve, when intensity of buckling reduces, the spring release, the spring beam stretches out the sleeve, accomplishes the support regulation to the buffer layer.

The protective layer comprises an inner protective sleeve, a painted steel strip armor layer is wound on the outer portion of the inner protective sleeve, and an outer protective sleeve is wound on the outer portion of the painted steel strip armor layer.

The inner protective sleeve and the outer protective sleeve are made of polyvinyl chloride.

The insulating layer is made of crosslinked polyethylene.

The elastic component sets up to individual, and every elastic component contained angle is 90.

The buffer layer is made of rubber.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. the utility model discloses a semi-directional film of polytetrafluoroethylene that winds the package in the outside of anaerobic copper conductor, can effectively improve the holistic high temperature resistance of cable, and the radiation influence that produces the conductor falls to minimumly, avoid the influence each other between each conductor, improve power supply efficiency, the elastic component who sets up outside the conductor can produce the effort that is opposite for the cable one and the power of buckling when buckling at the cable, be used for resisting buckling, the anti bending performance of cable has been strengthened, the adaptation that the waveguide tube that sets up in elastic component's outside can be better is buckled, the life of cable has been improved.

2. Can fill through the polypropylene guipure, prevent that each conductor from misplacing each other, lead to the cable outside to warp, appear the cracked phenomenon of cable surrounding layer in long-time use, adopt the device, guarantee the overall structure intensity of cable.

3. When the cable appeared buckling, because one section of reset block is connected with the spring beam, the spring on the spring beam can play the supporting role to the buffer layer through the reset block, and its effort can make adaptability along with intensity of buckling and change, and when the spring compression, inside the spring beam income sleeve, when intensity of buckling reduces, the spring release, the spring beam stretches out the sleeve, accomplishes the support regulation to the buffer layer.

Drawings

The utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the main viewing internal structure of an embodiment of the present invention.

Reference numerals: 1-oxygen free copper conductor; 2-an insulating layer; 3-an outer shielding layer; filling a 4-polypropylene mesh bag; 5-a waveguide; 6-inner protective sleeve; 7-painting a steel tape armor layer; 8-an outer protective sheath; 9-a reset block; 10-a spring rod; 11-a sleeve; 12-polytetrafluoroethylene semi-oriented film; 13-inner shield layer.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1.

The utility model provides a high temperature photovoltaic cable, includes oxygen-free copper conductor 1, oxygen-free copper conductor 1's outside is around there being polytetrafluoroethylene semi-directional film 12, the outside parcel of polytetrafluoroethylene semi-directional film 12 has internal shield layer 13, the outside parcel of internal shield layer 13 has insulating layer 2, the outside of insulating layer 2 is around there being external shield layer 3, the external fixation of external shield layer 3 is provided with several elastic component, elastic component's external fixation is provided with waveguide 5, waveguide 5's outside is around there being the protective layer.

The gap of the elastic component is provided with a polypropylene mesh bag filling 4.

Elastic component includes reset block 9, the one end fixedly connected with buffer layer of reset block 9, other end fixedly connected with spring beam 10, spring beam 10 cover is equipped with sleeve 11, sleeve 11 is kept away from the fixed center post that is provided with of one end of reset block 9.

The protective layer comprises an inner protective sleeve 6, a painted steel strip armor layer 7 is wound on the outer portion of the inner protective sleeve 6, and an outer protective sleeve 8 is wound on the outer portion of the painted steel strip armor layer 7.

The inner protective sleeve 6 and the outer protective sleeve 8 are made of polyvinyl chloride.

The insulating layer 2 is made of cross-linked polyethylene.

The number of the elastic assemblies is 4, and the included angle of each elastic assembly is 90 degrees.

In the above-mentioned embodiment one, wherein polytetrafluoroethylene semi-oriented film 4 is made through the sintering, possess high temperature resistant and anti-radiation performance, simultaneously, when the cable appeared buckling, because the one end of reset block 9 is connected with spring beam 10, the spring on the spring beam 10 can play the supporting role to the buffer layer through reset block 9, and its effort can make adaptability along with the intensity of buckling and change, when the spring compression, spring beam 10 income sleeve 11 is inside, when the intensity of buckling reduces, the spring release, the spring beam stretches out sleeve 11, accomplish the support regulation to the buffer layer, wherein elastic component sets up inside the cable, can set up a set of elastic component every five meters in the cable, wherein elastic component plays anti-buckling's effect simultaneously, can separate each conductor, certain conductor separation effect has been played, the electric conductivity of cable has been increased.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The utility model provides a high temperature photovoltaic cable, its characterized in that, includes oxygen-free copper conductor (1), the outside of oxygen-free copper conductor (1) is wrapped around there being polytetrafluoroethylene semi-directional film (12), the outside parcel of polytetrafluoroethylene semi-directional film (12) has internal shield layer (13), the outside parcel of internal shield layer (13) has insulating layer (2), the outside of insulating layer (2) is wrapped around there being external shield (3), the external fixation of external shield (3) is provided with several elastic component, elastic component's external fixation is provided with waveguide pipe (5), the outside of waveguide pipe (5) is wrapped around there being the protective layer.

2. A high temperature photovoltaic cable according to claim 1, wherein the gap of the elastomeric component is provided with a polypropylene mesh tape filling (4).

3. The high-temperature photovoltaic cable according to claim 1, wherein the elastic assembly comprises a reset block (9), one end of the reset block (9) is fixedly connected with the buffer layer, the other end of the reset block is fixedly connected with a spring rod (10), the spring rod (10) is sleeved with a sleeve (11), and one end, far away from the reset block (9), of the sleeve (11) is fixedly provided with a pivot column.

4. A high temperature photovoltaic cable according to claim 1, wherein the protective layer comprises an inner protective sheath (6), the outer portion of the inner protective sheath (6) is wrapped with a lacquered steel tape armor layer (7), and the outer portion of the lacquered steel tape armor layer (7) is wrapped with an outer protective sheath (8).

5. A high temperature photovoltaic cable as claimed in claim 4, wherein the inner and outer protective sheaths (6, 8) are of polyvinyl chloride.

6. A high temperature photovoltaic cable according to claim 1, characterized in that the material of the insulating layer (2) is cross-linked polyethylene.

7. A high temperature photovoltaic cable according to claim 1, wherein the number of elastomeric elements is 4, and the included angle of each elastomeric element is 90 °.

8. A high temperature photovoltaic cable according to claim 3, wherein the buffer layer is made of rubber.